IB/srp: Process all error completions

If the RDMA RC connection is closed, tell the SCSI mid-layer to
terminate all pending commands instead of only the first.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index c28833070201..f0843ef28e14 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1274,8 +1274,12 @@ static void srp_handle_qp_err(enum ib_wc_status wc_status,
                               enum ib_wc_opcode wc_opcode,
                               struct srp_target_port *target)
 {
-        shost_printk(KERN_ERR, target->scsi_host, PFX "failed %s status %d\n",
-                     wc_opcode & IB_WC_RECV ? "receive" : "send", wc_status);
+        if (!target->qp_in_error) {
+                shost_printk(KERN_ERR, target->scsi_host,
+                             PFX "failed %s status %d\n",
+                             wc_opcode & IB_WC_RECV ? "receive" : "send",
+                             wc_status);
+        }
         target->qp_in_error = true;
 }
 
@@ -1290,7 +1294,6 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
                         srp_handle_recv(target, &wc);
                 } else {
                         srp_handle_qp_err(wc.status, wc.opcode, target);
-                        break;
                 }
         }
 }
@@ -1307,7 +1310,6 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
                         list_add(&iu->list, &target->free_tx);
                 } else {
                         srp_handle_qp_err(wc.status, wc.opcode, target);
-                        break;
                 }
         }
 }